Mechanical movement



(No Model.)

M. G. JAGKSON MECHANICAL MOVEMENT.

Patented Nov, 26, 1889.

MECM4W N. evens Hash-Lithographer. Washington, 0. Q

UNITED STATES PAT NT OFFICE.

MANETHO O. JACKSON, OF DENVER, COLORADO.

MECHANICAL MOVEMENT.

SPECIFICATION forming part'of Letters Patent No. 415,783, dated November 26, 1889.

Application filed November 30, 1888. Serial No. 292,251. (No model.)

To all whom it may concern:

Be it known that I, MANErHo C. JACKSON, a citizen of the United States of America, residing at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Mechanical Movements, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to an improved and novel mechanical movement whereby a rotary motion is converted into a reciprocatory motion; and its objects are to furnish a power or movement in which the reciprocating pitman or main driving-wheel, by which power is transmitted to the driven apparatus, may be moved relatively slowly and with great force in one direction and brought back or moved in the reverse direction relatively speedily, and wherein each complete rotation of the rotary member shall cause a plural number of reciprocations of the pitman-rod and its attached parts, thus providing a me chanical movement of very simple yet strong construction, compact, readily transported and arranged for operation, durable, and giving large and speedy results for the power applied thereto; to which ends it consists in the features, arrangements, and combinations more particularly hereinafter described and claimed.

In the drawings is illustrated an embodiment of my invention, wherein Figure 1 is a plan view thereof with the moving parts in one position, and Fig. 2 a similar view with the parts in another position.

In the figures, the reference-numeral 1 indicates the base-plate for receiving and sus; taining the operative parts of the apparatus, and preferably it should be cast or formed in one piece. Such base-plate may rest upon any suitable foundation or support; or, where it is desired to have the apparatus fixed to be readily moved from place to place, it may be secured upon a wheeled platform or truck.

5 is the main driving-arm, rotatable upon the pintle or spindle 6,11p0n which it is centrally pivoted. Such pintle or spindle projects from the base-plate, to which it is secured or with which it is integrally formed 'or cast. To give a better and more extended seating of the arm upon this pintle or spindle, the arm may have a half-box 27 formed at a right angle to and projecting from the web or plane of the arm, and having a semicircular concavity coinciding with the bearingaperture in the web, such half-box forming one half of a journal-boX surrounding one half (circumferentially) of the pintle or spindle, the remaining half of the journ'al box being formed by a separate and detachable half-box 7, secured to half-box 27 by screws or bolts passing through lugs or cars .formed 011 both, all being held in place upon and prevented from rising 011 the spindle by a crown or cap 8, secured thereupon. Instead, however, of such extended journalbox being used, the arm 5 may have only the ordinary aperture or bearing-box in its web fitting upon the pintle or spindle and held thereon by the cap 8.

At the ends and upon one side of the arm 5-as herein illustrated the under side-are two curved ridges or projections 9' 10, arranged so that their convex surfaces project in the same direction, regard being had to the direction of rotation of the arm.

Pivoted orfulcrumed on a pin or standard 13, projecting from and formed with or secured to the base-plate, is a lever. of the first class, having the partll 12 extending each side of the fulcrum. Upon the face of part 11 and at or toward its extreme end is a pin or shoulder 15, on which, in order to reduce friction, is a roller 14, arranged to engage with the curved ridges or projections 9 10 of main driving-arm 5, while to the same end of the same part 11 is pivoted one end of the .pitman or main driving rod 16,whose other end is to extend to and be connected with the devices to which motion is to be communicated.

From the base-plate projects upwardly a shoulder or support 17, in which is pivoted at 19 a lever composed of two arms 18 28, the shorter arm 18 carrying at its outer free end a roller 20 on a pin projecting from the arm. The outer end of the longer arm 28 is pivoted to one end of a rod or shaft 21, whose other end is pivoted to the arm 12.

As here represented, this mechanical movement is adapted to a horse-power, a seat 23 for a tongue being formed on the arm or lever 5, within which is suitably secured the main tongue 24. To add to the leverage of this tongue and give the greatest leverage to the arm, a rod or supplementary tongue 26 is carried from near the end of such tongue to an eye or other suitable fastening device 25 at an extreme end of the arm 5, this aiding in also giving a firmer attach mentof the tongue I 24 to the arm.

These few and compactly-arranged parts constitute the mechanical movement, and the operation thereof is as follows: Suppose the parts to be in the position shown in Fig. 2. The pitman 16 and the parts to be operated thereby are retracted to the rearward limit of movement, throwing the arm 11 back and the arm 12 to the front, the latter, through the medium of rod 21, carrying the arms 18 and 28 forward, so that the ridge or projection 10 may pass the roller or bearing 20 on arm 18 without impinging thereupon. In such position the extreme end of ridge or projection 9 is in or about in contact with the bearing 14 on arm 11, and as the arm 5 is rotated on its pivot such curved ridge or proj ection 9 bears against such bearing, pushing the same, and of course the pitman 16 and its attached parts, forward, the bearing moving inward over the corner face of the ridge or projection until it reaches the inner limit thereof, when it slips therefrom into the space between such inner limit and the hub or bearing of the arm 5, the pitman being then at its forward limit of movement. This forward movement of the arm 11 has given a backward movement to the arm 12, which has through rod 21 pulled the arms 18 and 28 to the rear, so that just as ridge or projection 9 ceases to act on the bearing 14:, arm 11, and pitman 16 the roller 20 is in the path of the edge of arm 5. Preferably arm 5 should have its edges where it is to engage with such bearing somewhat cut away and curved, as shown at 22, to the more easily operate on roller-bearing 20. The movement continuing, the edge of arm 5, through the roller 20, presses forward and almost instantaneously the arms 18 and 28, carrying the rod 21 and arm 12 also forward, thus retracting arm 11 and pitman 16 and placing the parts again in the position shown in Fig. 2, except that the relative positions of curved ridges or projections 9 and 10 are reversed, so that the roller-bearin g and pitman 16 are in position to be thrown forward by the convex face 10. This insures a powerful forward" stroke of the pitman-rod and Whatever head may be attached to it and an instantaneous recovery or back movement thereof for asucceeding forward stroke.

While this mechanical movement has been used with great success in connection with a hay or baling press, largely increasing the speed and effectiveness thereof, it is evident that it may be used with anypress wherein it is desired to act with great force in one direction, and to recover or draw back the' might be rotated by any other power, a pulley, for instance, being secured to the hub thereof, with a belt thereon driven from an engine. It is evident, also, that the relative locations of the curved projecting ridges 9 10 and the roller-bearing 14 might be reversedthat is, a curved projecting side might be placed on the arm 11 of the lever and rollerbearings 14 be placed at the ends of the'main driving-arm 5 and the parts co-operate together in the same manner as with the locations shown therefor.

Having thus described my invention, what I claim is 1. The combination of the arm 5, carrying the curved ridges or projections 9 10, the lever composed of parts 11 12, the former carrying a bearing for the curved ridges or projections to take against, the lever composed of the arms 18 28, carrying a bearing for the arm 5 to take against, all pivoted or supported on a suitable base-plate, a main reciprocating rod or pitman 16, and the rod 21, substantially as set forth.

2. The combination of the arm 5, with the curved ridges or projections 9 10, the lever having the parts 11 12 and carrying the pin and roller-bearing 14, the lever composed of arms 18 28, carrying the pin and rollerbearing 20, a base-plate 1, a main reciprocating rod 16, and connecting-rod 21, substantially as set forth.

3. The combination of a main driving-arm arranged to be rotated on a central pivot and having the curved projecting ridges, a pivoted lever carrying the bearing-rollers arranged to be impinged upon by such ridges for the movement of the lever in one direction, a pitman-rod connected to one end of such lever, a second pivoted lever arranged to be moved in one direction by the main arm, and a rod connecting the other end of the first lever and the free end of the second lever for moving the pitman and first lever in the other direction, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

MANETI-IO O. JACKSON. Witnesses:

Z. F. WILBER, B. L. PoLLocK. 

